There is no such thing as break in, and Axiom will tell you the same thing. It might take time for your brain to get used to the new sound, but the speakers don't break in, contrary to what some in the "break in" camp will tell you.

I would say to allow at least 4-6" of space behind the speakers to help the low freq's filter out of the bass ports.


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85